Abstract

ABSTRACTSodium tetrathionate (TT) was assessed for its possible protection of proteolytic activity (PA) of rehydrated crude papain during drying and storage. The addition of 1% TT significantly decreased the loss of PA of rehydrated crude papain after being oven dried at 55°C. This protection of PA was 15–20% higher than that from metabisulfite. Crude papain with 1% TT lost 20% of PA and with metabisulfite lost 45% of PA in 13 wk at room temperature. Results suggest TT may decrease loss of PA during papaya latex processing and storage of crude papain.

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